CN212055420U

CN212055420U - Gecko is repaiied to spacing detachable car

Info

Publication number: CN212055420U
Application number: CN202020135630.0U
Authority: CN
Inventors: 张雅欣; 赖绣奇
Original assignee: Ningbo Anwang Special Fastener Co ltd
Current assignee: Ningbo Anwang Special Fastener Co ltd
Priority date: 2020-01-20
Filing date: 2020-01-20
Publication date: 2020-12-01
Anticipated expiration: 2030-01-20

Abstract

The utility model relates to a gecko is repaiied to spacing detachable car belongs to the expansion bolts field. The main technical scheme includes that the expansion pipe comprises a countersunk head bolt and an expansion pipe which is sleeved on the countersunk head bolt, the countersunk head bolt comprises a screw rod portion and a limiting portion, the screw rod portion is provided with external threads, the limiting portion comprises a cylindrical section and a circular platform section which are integrally arranged, and the cylindrical section is detachably connected with the screw rod portion. When a wall body with lower structural strength is encountered, the originally configured limiting part is screwed out, and the limiting part with the circular platform section with larger diameter is screwed into the countersunk head bolt, so that the expansion deformation of the expansion pipe is larger when the car gecko is used, the connection strength between the car gecko and the wall body is improved, and the car gecko is prevented from falling off from the wall body.

Description

Gecko is repaiied to spacing detachable car

Technical Field

The utility model relates to an expansion bolts field, in particular to gecko is repaiied to spacing detachable car.

Background

An expansion bolt is a special threaded connector used for fixing pipeline supports or equipment on walls, floors and columns. Expansion bolts are various, and a car gecko is one of the expansion bolts.

The application publication number is CN106481628A, and discloses an expansion screw, which comprises a screw body, a screw rod and a nut, wherein the screw body comprises a hexagonal head and a screw rod part, the middle part of the screw rod part is provided with a screw thread part, the outer end of the screw rod part is provided with a wedge-shaped head part, and the screw rod part is sleeved with a gasket; the expansion sleeve is internally provided with an internal thread matched with the thread part, one end of the expansion sleeve penetrates through the wedge-shaped head part and is sleeved on the thread part, the end face of the other end of the expansion sleeve is provided with a plurality of open expansion gaps, and a plurality of strip-shaped convex edges are protruded on the outer side face of the expansion sleeve at intervals.

When the inflation screw used, drill on the wall body earlier, in the hole of the one end embedding wall body that has the wedge head with the inflation screw, the rotating hexagon head, the wedge head of screw rod portion makes the inflation sleeve inflation, thereby fix the inflation screw in the wall body, but among the above-mentioned technical scheme, sometimes the workman can produce the deviation because of the hand trembles when giving wall body drilling, it will be big to bore the hole of wall body preset, and the toper slope of wedge head is fixed unchangeably, lead to the inflation telescopic inflation shape variable unchangeable, make the inflation screw insufficient with the firm in connection degree of wall body, the inflation screw easily drops from the wall body.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a gecko is repaiied to spacing detachable car, spacing portion can be dismantled with screw rod portion and be connected, and the removable round platform section tapering of gecko is bigger spacing portion is repaiied to the car, makes the expansion deformation volume of expansion pipe bigger, prevents that the gecko is repaiied to the car from droing from the wall body.

The utility model aims at realizing through the following technical scheme:

the utility model provides a gecko is repaiied to car that spacing portion is detachable, includes countersunk head bolt and expansion pipe, countersunk head bolt includes interconnect's screw rod portion and spacing portion, screw rod portion is close to the one end of spacing portion is equipped with the screw hole, spacing portion is close to the one end of screw rod portion is equipped with the thread head, screw rod portion with spacing portion can dismantle the connection through the screw thread.

Through adopting above-mentioned technical scheme, spacing portion passes through threaded connection with the screw rod portion, make spacing portion can follow the countersunk head bolt and dismantle, when the hole that the staff bored at the wall body is bigger than the preset will, original spacing portion on the countersunk head screw rod of back-off will improve the spacing portion screw in countersunk head bolt of expansion pipe expansion deformation volume, the expansion deformation volume of expansion pipe is bigger when making the car repair gecko use, improve the joint strength between car repair gecko and the wall body, prevent that the car from repairing the gecko and coming off from the wall body.

The utility model discloses further set up to: the external thread of the thread head is opposite to the external thread of the screw rod part.

Through adopting above-mentioned technical scheme, when rotatory countersunk head bolt makes stopper and expansion pipe butt and let the expansion pipe deformation, keep motionless between spacing portion and the countersunk head bolt, prevent that spacing portion from unscrewing from the countersunk head bolt.

The utility model discloses further set up to: the limiting portion comprises a cylindrical section and a circular table section which are integrally and coaxially arranged, one end of the cylindrical section is connected with the end, with the smaller diameter, of the circular table section, the outer side wall of the circular table section is a conical surface, and the expansion pipe is sleeved on the cylindrical section.

Through adopting above-mentioned technical scheme, when the gecko is repaiied to the car was used, countersunk screw was screwed out, and the lateral wall of round platform section and the inside wall looks butt of expansion pipe make the expansion pipe outwards expand and with pore wall looks butt on the wall body, make the gecko be repaiied to the car and wall body coupling.

The utility model discloses further set up to: the round platform section cover is equipped with expansion assembly, expansion assembly includes expansion pipe and elastic ring, the inside wall of elastic ring with the outside wall of round platform section is laminated mutually, the inside wall of expansion pipe with the outside wall of elastic ring is laminated mutually, the lateral wall of expansion pipe is the expansion conical surface.

By adopting the technical scheme, when the hole drilled in the wall body by a worker is larger than the preset value, the limiting part of the countersunk head screw is screwed out, the expansion assembly is sleeved on the circular platform section of the limiting part, the outer diameter of the circular platform section is increased, and the outer side wall of the expansion pipe is abutted against the inner side wall of the expansion pipe, so that the deformation of the expansion pipe is larger when the countersunk head screw is used, and the gecko for repairing vehicles is prevented from sliding out of the wall body; the elastic ring is made of rubber materials and is located between the expansion pipe and the circular truncated cone section, when the expansion pipe is abutted to the expansion pipe, the elastic ring improves friction force between the expansion pipe and the circular truncated cone section, and the expansion pipe is prevented from sliding out of the circular truncated cone section.

The utility model discloses further set up to: the inner side wall and the outer side wall of the elastic ring are conical surfaces.

By adopting the technical scheme, the conical surface enables the elastic ring and the limiting block to be attached more tightly, and the elastic ring and the circular truncated cone section to be attached more tightly, so that the friction force between the expansion pipe and the circular truncated cone section is further improved.

The utility model discloses further set up to: at least two expansion gaps for enabling the expansion pipe to deform are arranged at intervals in the circumferential direction of the expansion pipe, the expansion gaps penetrate through the side wall of the expansion pipe, and one end of each expansion gap extends to the edge of the end portion, far away from the screw rod portion, of the expansion pipe.

Through adopting above-mentioned technical scheme, the inflation clearance is separated into a plurality of parts with the expansion pipe, and when the round platform section of spacing portion and expansion pipe butt, the inflation piece outwards expands under the butt of round platform section, makes inflation piece and wall body butt.

The utility model discloses further set up to: the outer side wall of the expansion pipe is provided with a plurality of bulges.

Through adopting above-mentioned technical scheme, when the lateral wall of expansion pipe and wall body butt, a plurality of archs inlay in the wall body, make the car repair gecko more firm with wall body coupling, prevent that the car from repairing gecko roll-off from the wall body.

The utility model discloses further set up to: the expansion gap gradually increases from the expansion pipe approaching the screw part to the expansion pipe far away from the screw part.

Through adopting above-mentioned technical scheme, when the inside wall of expansion pipe and the round platform section butt of spacing portion, the separation of inflation is changeed to the tip of expansion pipe, makes things convenient for the use of expansion pipe.

The utility model discloses further set up to: and the inner diameter of the expansion pipe from the end close to the screw rod part to the end far away from the screw rod part is gradually increased.

Through adopting above-mentioned technical scheme, the expansion pipe deviates from the one end perk of screw rod portion, forms the spigot surface, makes things convenient for the round platform section of spacing portion to get into the expansion pipe, makes spacing portion advance more smoothly at the expansion pipe.

To sum up, the utility model discloses a beneficial technological effect does:

1. when the hole drilled in the wall body by the worker is larger than the preset value, the original limiting part on the countersunk head screw rod is screwed out, the limiting part capable of improving the expansion deformation of the expansion pipe is screwed into the countersunk head bolt, so that the expansion deformation of the expansion pipe is larger when the gecko is repaired by the vehicle, the connection strength between the gecko and the wall body is improved, and the gecko is prevented from falling off from the wall body;

2. the utility model discloses, when the staff bored the hole in the wall body and to be bigger than the preset, the spacing portion of countersunk screw was unscrewed, the expansion subassembly cover on the round platform section of spacing portion, increased the external diameter of round platform section, the lateral wall of expansion pipe and the inside wall looks butt of expansion pipe, made the deformation volume of expansion pipe bigger when the countersunk bolt was used, prevented that car repair gecko from slipping out in the wall body;

3. the utility model discloses, the elastic ring is located between expansion pipe and the round platform section, and when expansion pipe and expansion pipe butt, the elastic ring improves the frictional force between expansion pipe and the round platform section, prevents that the expansion pipe from roll-off on the round platform section.

Drawings

FIG. 1 is a schematic structural diagram of a gecko for vehicle repair in an embodiment;

FIG. 2 is an exploded view of the gecko in the example;

FIG. 3 is a schematic structural view of an expansion pipe in the embodiment;

fig. 4 is a schematic structural view of a limiting block and an expansion assembly in an embodiment.

In the figure, 1, a countersunk bolt; 11. a screw section; 111. a threaded hole; 112. a blocking ring; 12. a limiting part; 121. a cylindrical section; 122. a circular table section; 123. a screw head; 2. an expansion tube; 21. an expansion gap; 22. a protrusion; 221. an elliptical bump; 222. a triangular bump; 3. a nut; 4. a spring washer; 5. a flat washer; 6. an expansion assembly; 61. an elastic ring; 62. and (4) expanding the tube.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, a gecko is repaiied to car that spacing portion is detachable includes countersunk head bolt 1, expansion pipe 2, nut 3, spring washer 4 and plain washer 5, and expansion pipe 2, nut 3, spring washer 4 and plain washer 5 all overlap and establish on countersunk head bolt 1.

Referring to fig. 1 and 2, the countersunk head bolt 1 includes a screw portion 11 and a limiting portion 12, and the limiting portion 12 is in threaded connection with the screw portion 11. Nut 3, spring washer 4, plain washer 5 from screw rod portion 11 deviate from the one end of spacing portion 12 to be close to the one end of spacing portion 12 and overlap in proper order on screw rod portion 11, nut 3 passes through threaded connection with screw rod portion 11.

The end of the screw part 11 close to the limiting part 12 is provided with a threaded hole 111. One end of the screw part 11 close to the limiting part 12 is provided with a stop ring 112, the inner side wall of the stop ring 112 is attached to the outer side wall of the screw part 11, the stop ring 112 and the screw part 11 are integrally formed, and the outer diameter of the stop ring 112 is larger than the inner diameter of the flat washer 5.

Referring to fig. 2 and 4, the limiting portion 12 includes a cylindrical section 121 and a circular truncated cone section 122 which are integrally and coaxially disposed, one end of the cylindrical section 121 is connected to one end of the circular truncated cone section 122 with a smaller diameter, the diameter of one end of the circular truncated cone section 122 close to the cylindrical section 121 is the same as the diameter of the cylindrical section 121, and the end of the circular truncated cone section 122 with a smaller diameter is connected to one end of the cylindrical section 121. The outer side wall of the circular truncated cone section 122 is a conical surface, and the diameter of the circular truncated cone section 122 gradually increases from the end close to the cylindrical section 121 to the end far away from the cylindrical section 121.

The one end that cylinder section 121 deviates from circular platform section 122 is screw thread head 123, and the diameter of cylinder section 121 is less than the diameter of screw rod portion 11, and screw thread head 123 embedding screw hole 111 just the cylinder section 121 and the screw rod portion 11 of spacing portion 12 pass through threaded connection to the external screw thread of cylinder section 121 is opposite with the external screw thread direction of screw thread.

The outer of the circular table section 122 is provided with an expansion assembly 6, the expansion assembly 6 comprises an expansion pipe 62 and an elastic ring 61, the expansion pipe 62 is a cone with two open ends, the outer side wall of the expansion pipe 62 is an expansion conical surface, the thickness of the inner wall of the expansion pipe 62 is the same, and the inner wall of the expansion pipe 62 is also a conical surface.

The elastic ring 61 is arranged between the expansion pipe 62 and the circular truncated cone section 122, the elastic ring 61 is made of rubber materials, the outer side wall and the inner side wall of the elastic ring 61 are conical surfaces, the inner side wall of the elastic ring 61 is attached to the outer side wall of the circular truncated cone section 122, and the outer side wall of the elastic ring 61 is attached to the inner side wall of the expansion pipe 62.

Referring to fig. 2 and 3, the expansion pipe 2 is sleeved on the cylindrical section 121 of the limiting portion 12, the inner diameter of the expansion pipe 2 is smaller than the outer diameter of the stop ring 112, three expansion gaps 21 for deforming the expansion pipe 2 are circumferentially arranged on the expansion pipe 2 at intervals, the expansion gaps 21 penetrate through the inner and outer side walls of the expansion pipe 2, one end of each expansion gap 21 extends to the edge of the end portion of the expansion pipe 2, which is far away from the screw portion 11, and an expansion sheet is formed between every two adjacent expansion gaps 21.

The expansion pipe 2 is provided with a fracture which is communicated with one of the expansion gaps 21, the expansion pipe 2 is rolled into a pipe shape by a sheet shape, and the fracture is a joint on two sides. The lateral wall of inflation piece is equipped with two archs 22, and two archs 22 include triangle lug 222 and oval lug 221, and triangle lug 222 is close to the tip setting that the inflation piece deviates from screw rod portion 11, and triangle lug 222 is obtuse angle isosceles triangle shape, and the obtuse angle of triangle lug 222 deviates from the one end of screw rod portion 11 towards the inflation piece, and triangle lug 222 is the cambered surface towards the side that the inflation piece deviates from the one end of screw rod portion 11. The elliptical bump 221 is in a shape of a semi-ellipse, and the length direction of the elliptical bump 221 is the same as the length direction of the expansion sheet.

The expansion gap 21 becomes gradually larger from the expansion pipe 2 approaching the screw part 11 to the expansion pipe 2 departing from the screw; the expansion pipe 2 gradually increases from one end close to the screw rod part 11 to one end far away from the screw rod part 11, so that the inner side wall of the expansion pipe 2 forms a guide surface, and the round platform section 122 of the limiting block is convenient to abut against the inner side wall of the expansion pipe 2.

The working principle of the embodiment is as follows: the nut 3 is screwed to the end part, away from the limiting part 12, of the screw part 11 in advance, when the car repair gecko is used, firstly, a hole is drilled in a wall body, the end, with the limiting part 12, of the car repair gecko is firstly embedded into the hole, then, the whole car repair gecko is embedded into the hole, only the nut 3, the spring washer 4 and the flat washer 5 are exposed, the flat washer 5 is abutted to the surface of the wall body, the nut 3 is screwed into the end, close to the limiting part 12, of the nut 3, the screw part 11 is driven by the nut 3 to move towards the outer side of the wall body due to the fact that the nut 3 is not moved, the screw part 11 drives the limiting part 12 to move outwards, the circular truncated cone section 122 of the limiting part 12 is abutted to the expansion pipe 2, the expansion piece of the expansion pipe 2 moves towards the direction, away from the center of the expansion pipe 2, and the expansion piece is.

When the structural strength of the wall body is low, the limiting part 12 of the original countersunk head bolt 1 is screwed out, the expansion pipe 2 is taken down, the expansion assembly 6 is sleeved on the circular truncated cone section 122 of the limiting part 12, then the expansion pipe 2 is installed, and finally the limiting part 12 is screwed into the countersunk head bolt 1.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a gecko is repaiied to spacing detachable car, includes countersunk head bolt (1) and expansion pipe (2), countersunk head bolt (1) includes interconnect's screw rod portion (11) portion and spacing portion (12), its characterized in that, screw rod portion (11) portion is close to the one end of spacing portion (12) is equipped with screw hole (111), spacing portion (12) are close to the one end of screw rod portion (11) portion is equipped with screw thread head (123), screw rod portion (11) portion with spacing portion (12) can dismantle the connection through the screw thread.

2. The car wall gecko with the detachable limiting part as claimed in claim 1, wherein the external thread of the screw head (123) is opposite to the external thread of the screw part (11).

3. The car wall gecko with the detachable limiting part as claimed in claim 1, wherein the limiting part (12) comprises a cylindrical section (121) and a truncated cone section (122) which are integrally and coaxially arranged, one end of the cylindrical section (121) is connected with the end with the smaller diameter of the truncated cone section (122), the outer side wall of the truncated cone section (122) is a conical surface, and the expansion pipe (2) is sleeved on the cylindrical section (121).

4. The car wall repairing gecko with the detachable limiting part according to claim 3, wherein the frustum section (122) is sleeved with an expansion assembly (6), the expansion assembly (6) comprises an expansion pipe (62) and an elastic ring (61), the inner side wall of the elastic ring (61) is attached to the outer side wall of the frustum section (122), the inner side wall of the expansion pipe (62) is attached to the outer side wall of the elastic ring (61), and the outer side wall of the expansion pipe (62) is an expansion conical surface.

5. The car wall lizard with the detachable limiting part as claimed in claim 4, wherein the inner and outer side walls of the elastic ring (61) are both tapered surfaces.

6. The vehicle wall gecko with the detachable limiting part is characterized in that the expansion pipe (2) is provided with at least two expansion gaps (21) at intervals in the circumferential direction, the expansion gaps (21) enable the expansion pipe (2) to deform, penetrate through the side wall of the expansion pipe (2), and one end of each expansion gap (21) extends to the edge of the end part, far away from the screw rod part (11), of the expansion pipe (2).

7. A car gecko with a detachable limiting part according to claim 6, characterized in that the outer side wall of the expansion pipe (2) is provided with a plurality of protrusions (22).

8. The vehicle house lizard with the detachable limiting portion according to claim 7, wherein the expansion gap (21) is gradually enlarged from the expansion tube (2) approaching the screw portion (11) to the expansion tube (2) departing from the screw portion (11).

9. The car repair gecko with the detachable limiting part according to claim 8, wherein the inner diameter of the expansion pipe (2) from the end close to the screw part (11) to the end far away from the screw part (11) is gradually increased.